Display panel of a programmed computer system with a graphical user interface



The FIGURE is a face view of a display panel of a programmed computer system with a graphical user interface.

The outermost solid-line rectangle illustrates the perimeter of the display panel. The broken lines outside this rectangle illustrate an electronic device and form no part of the claimed design. The remaining broken lines illustrate portions of a graphical user interface and form no part of the claimed design. 

CLAIM What is claimed is the ornamental design for a display panel of a programmed computer system with a graphical user interface, as shown and described. 